The argument here is the teachers aren't well-paid in the US, especially given the importance of their profession and the level of education a teacher typically gets.
I can't speak for KY, but if you want to go into specific numbers, let's start here:
>In 2016, for instance, the average teacher’s starting salary was $38,617
Make that $45K in California[1].
In San Jose, where I currently live, median elementary school teacher salary is about $50K[2].
With this kind of salary, the median teacher will not be able to rent a one-bedroom apartment in decent San Jose, which typically go for well over $2K/month (about $2500 for 1B)[3], since landlords usually want to see monthly incomes of 3X rent (source: I'm renting).
That's barely double the minimum wage ($12/hr in SJ) for a median teacher salary.
Again: this means half the elementary school teachers in San Jose make under 2X minimum wage and most literally can't afford to rent a 1B apartment on their own.
That's before you add in student loans (education isn't free!), car payment/maintenance/insurance (we don't have a usable public transportation system here), etc - and that's assuming no kids.
You can always find an example of a teacher that's well paid, but there's a reason why the teachers were protesting in several states - and the reason isn't that they have too much money thrown at them.
[1]http://www.nea.org/home/2016-2017-average-starting-teacher-s...
[2]https://www.payscale.com/research/US/Job=Elementary_School_T...
[3]https://www.rentjungle.com/average-rent-in-san-jose-rent-tre...